<button mat-menu-item [matMenuTriggerFor]="my">{{ starUsername }}</button>

<mat-menu #my="matMenu">
  <button
    mat-menu-item
    *ngFor="let item of lists"
    (click)="onClickItem($event, item)"
    l10nTranslate
  >
    {{ item.text }}
  </button>
</mat-menu>
